Add gating and run included unit tests

.fmf/version

@@ -0,0 +1 @@
+1

gating.yaml

@@ -0,0 +1,6 @@
+--- !Policy
+product_versions:
+  - rhel-10
+decision_context: osci_compose_gate
+rules:
+  - !PassingTestCaseRule {test_case_name: osci.brew-build.tier0.functional}

plans/main.fmf

@@ -0,0 +1,8 @@
+execute:
+    how: tmt
+
+discover:
+    dist-git-source: true
+    dist-git-merge: true
+    how: fmf
+    dist-git-install-builddeps: true

tests/unit.fmf

@@ -0,0 +1,20 @@
+test: |
+    cd $TMT_SOURCE_DIR
+    # Comment out simplecov.
+    for file in \
+        spec/spec_helper.rb \
+        test/executable/suite.rb \
+        test/functional/for_redcloth.rb \
+        test/functional/suite.rb \
+        test/unit/suite.rb; do
+        sed -i "/^require 'simplecov'/ s/^/#/" "${file}"
+    done
+    export LANG=C.UTF-8
+    ruby ./test/functional/suite.rb
+    # RedCloth is not installed and will be skipped anyway
+    # ruby ./test/functional/for_redcloth.rb
+    ruby ./test/unit/suite.rb
+require:
+- rubygem-coderay
+tag:
+- rhel-buildroot